1299338379 has 12 divisors (see below), whose sum is σ = 1958423376. Its totient is φ = 828563472.

The previous prime is 1299338329. The next prime is 1299338399. The reversal of 1299338379 is 9738339921.

It is not a de Polignac number, because 1299338379 - 2⁷ = 1299338251 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1299338329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3138292 + ... + 3138705.

It is an arithmetic number, because the mean of its divisors is an integer number (163201948).

Almost surely, 2^1299338379 is an apocalyptic number.

1299338379 is a deficient number, since it is larger than the sum of its proper divisors (659084997).

1299338379 is a wasteful number, since it uses less digits than its factorization.

1299338379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277026 (or 6277023 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 1299338379 is about 36046.3365544961. The cubic root of 1299338379 is about 1091.2077007572.

The spelling of 1299338379 in words is "one billion, two hundred ninety-nine million, three hundred thirty-eight thousand, three hundred seventy-nine".